From the update, it seems you would like to remove the borderlines in grid and display text in covered range of cells in same font. If it is, please try the following settings.this.gridControl1.Properties.DisplayHorzLines = false;this.gridControl1.Properties.DisplayVertLines = false;this.gridControl1[1, 2].Text = "Syncfusion";this.gridControl1.CoveredRanges.Add(GridRangeInfo.Cells(1, 2, 1, 5));this.gridControl1[1, 2].HorizontalAlignment = GridHorizontalAlignment.Center;this.gridControl1.ShowCurrentCellBorderBehavior = GridShowCurrentCellBorder.HideAlways;

In this sample, three cells were merged and a text called "Syncfusion" is set to display in that range with same font. It doesn't show any cellspacing in between the characters in the merged cellrange thereby giving the look of single cell.

If this is not the one you tried to insist, please let me clear with some more details or a screenshot showing the appearance you would like to have with gridcontrol.